Improvement in paper-polishing machines



- ididnt Ss/i attlti @fine vABRAM WRIGHT AND GEORGE E'WRIGHT, OLIN TON MASSACHUSETTS,

ASSIGNORS TO THEMSELVES AND JOHN H.

MCNABB, 'or sAMn'rLAcn.

'Leners Patent No. 110,947, dana January 1o, 1871.

The Schedule referred to in. these Letters Patent and making part of the same.

We, ABRAM-WRIGHT and GEORGE F. weleer, of Clinton, in the county of Worcester and State ol Massachusetts, have invented certain Improvements in Machines for Polishing Paper, of which the following is a specification.

.Nature and Object'of the Intention.'

three or more independentpieces of fiint, or any Vsuitable material, when used conjoint-ly upon the'surface of a continuous strip of paper, for polishing the same, the object of this part of' our invention being to em\ ploy1 a large number of pieces of flint to come in contact with the paper, instead of one piece as used in 'the 'present process, thereby greatly increasing the facility for polishing paper, with much less expense; also, to simplify the art of grinding the ints to produce a suitable surface to rest -upon the` pape-r, a

Description of Vthe Accompanying Drawing. Figure 1 is a side elevationof a machine embody-- ing our invention.

Figure 2 is a vertical -transverse Vsection through the dotted black line from Ato B in ig..3'.

Figure 3 is a plan of the machine. General Description.

K a is the-frame of theI machine, which frame shouldbe substantially constructed to' resist the vibrations of operating parts;

'b 1s the driving-shaft, having secured to it the hand- 4'wheel c, grooved pulley d, and crank-wheel e,"

f is 'an intermediate'shaft, having secured to it'the .grooved pulleys g and h;

grooved =pulley j It is a. cylinder;

land an are guide-rolls; A,

n is the paper-beam No. 2;

y z' is the paper-beam, having secured to one end the The. first part of our invention relates to the use of `11.; then passing around the o is a friction-strap;

p, a spring secured to the frame a; and g is the oscillating flint-holder, having for its axis the shaft 2 of cylinder lt.

-r is a connecting-rod between the studs s in the holder q and the stud t in the crank-Wheel e.

u -zt u are sockets containing tlints.

c e e are Iiints in said sockets.

3 is caleined plaster or other substance around said ints.

w w w are springs, arranged to press upon the lsockets u u u, which rest upon the paper 4 upon the cylinder 7s'.

The paper 4,to be polished, is wound upon the beam suitable iin-bedding and guide-roll m, it is secured to the beam. i.

. This being done, by turning vthe hand-wheel c u1oVA tion is communicated to the shaft f' by the belt a; andi pnlleys'd and g thence to the paper-beam t' by the belt y and pulleys h and `and by the'- same motion of hand-Wheelc, the flint-holder g is made to oscillate upon its axes by the 4connecting-rod r attached to studs s and t; and the tlints e e c, being suitably pre- '.pared, are. pressed upon the paper 4, upon the cylinder 7:, by thev springs w' 'w w. The paperispolished while vit is being drawn in its course i'om beam n and-wound, paper is made to lie closely upon beam t', and the upon the cylinder' le' by the action of the strap 0 and spring p npon'the shaft ,of said beam.

Claims.

We claim asour inventionl. Three or more independent pieces ofint, c 'u c,

y. or other suitable. substance, used conjointl-y on the same piece of paper 4, for the purpose hereinbefore set forth. Y

2. The iiint v, the imbedding substance 3, and the socket "u, when used substantially as and for the purpose hereinbefore'set forth.

'3. The spring w, when used substantially as and for the purpose hereinbefore set forth.

ABRAM WRIGHT.

GEORGE F.'WR;IGHT,

Witnesses z O. F. W. PARKHURST, H. J. BROWN.

guide-roll l, cylinder la, 

